The animated series Totally Spies was one of my all-time favorite shows growing up. The characters range in diversity, and the colors and animation are great- able to captivate young minds and keep them entertained. The humor is there- adults who don't mind animation, could follow along and be enticing for the older crowd. There is action and adventure in every episode, going to different places around the world and dealing with "Spy Entail" and a fictional look into the life of undercover spies. The main characters, Clover, Sam and Alex remain consistent with their attitudes and nature/personality throughout each season and episode, while the settings offer great changes throughout each season and episode.
https://www.youtube.com/watch?v=xNQjmE40k4I